Pole, pile and column of reinforced concrete.



R. M. JONES.

POLE, PILL, AND COLUMN 0F REINFORCED CONCRETE.

" APPLICATION TILED JAN-16, 1912.

Patented June 24, 1913.

ROBERT M. JONES, or DENVER, coronano.

201E, BILE, AND COLUMN or nnnironcnn CONCRETE.-

Specification ofLetters Patent.

Application-filed January 16, 1912. Serial No. 671;533.

Eh ole wfzmnit mag/concern citizen of the United States, residingat Denver, in the county of Denver and State of'C/oloradmh'ave invented certain new and useful Improvements .in Poles, Piles, and Columns of Reinforced Goncrete, of which the followingv is a specification.

My invention relates to poles, piles and columns ot reinforcedconcrete,-and its objeot" resides in the provision of a simple method of construction which briefly, consists in=produeing artioles of the above mentioned charaoterg-in two or more complementary sections,- 2 which when united, form astructure which excels in strength and dilrabilit w- Anembodiment of my'invention is shown in the accompanying drawings in the vari ous views of which likeparts are similarly designated and iii-which,

F ignrei li represents 'a-JQra-gmentary View, partially in section, of apole, pile or column of the character described: formed of two sections,'F-igz 2, atrans-verse section taken along the line 2'.2, Fig. 1, Fig. 3, fasfragmentary elevation of 'one of the sections of which the structure shown inFig. 1 is com posed, Fig. 4, a fragmentary elevation of the pole, pile or'column partially surrounded by the casing or jacket which, in the practice of my process, is employedto temporarily maintain the adjoining sections of the structure in their relative positions, and Fig. 5, a cross-section taken along the line 5-5, Fig. 4.

Referring more specific'allyto the drawings, the letters A and B designate respectively the two sections of which the article shown in Fig. 1 is composed. Each of these sections consists'of a hollow cylinder made of concrete and reinforced by metallic rods C which extend longitudinally through its wall. These reinforcing rods project beyond the end of each section at which in the construction of the pole or column it is to adjoin a complementary section, and the protruding end portions of the rods are divided into two distinctive groups which in the drawings are respectively designated by the letters E and D. The portions of the .rods C comprised in the group designated by the letter E extend in alinement with their body portions ;which are embedded in the wall of the section, and they serve in the process of'joining the sections, to determine the distance between the adjacent ends thereof and temporarily support the one upon the other. The rodportions 1) comprised in the other group are of a length greatly exceeding that ofithe portions E and they are bent from the points at which they protrude beyond the end of the section, inwardly toward the longitudinal axis of the same to freely enter the interior of the adjoining section when the parts are being placed in their relative positions.

The sections used in the construction of poles are preferably provided with a series of metal-lined openings H for the insertion of steps by means of which the pole may he climbed to reach the electric conductors or other parts supported at the upper end thereof, and the lower one of each two adjoining sections is furthermore provided at the time it is made, with a transverse partition F. which in the process of joining the two sections serves as a stop and support for the plastic material by the use of which the joint is produced.

The process of joining-two of the above described sections is carried out as follows: After the lower section, B, has been rigidly secured in place upon a suitable foundation, the upper section A, after having been suspended in axial alinementtherewith, is lowered until the ends of the rod-portions E 01 each section engage the end-surface of the other section. lVhile the upper section is being placed in its proper position with relation to the lower one, the group of rod. portions l) of each of the two sections, will enter the interior of the adjoining one, the rods comprised in the two groups, intersecting one another in the space between the separated ends of the sections. The upper section is now secured in its position relative to the lower one, by means of a casing or jacket I shown in Figs. 4 and 5 of the drawings, which being firmly clamped around the adjoining end-portions of the two sections, inclosesthe open space between the opposite ends thereof which stated above are separated from each other by the protruding portions of the reinforcing rods comprised in the groups. This casing consists of two overlapping component parts made of sheet metal, which are securely clamped around the sections to be joined by nieansof surrounding bands J, the threaded extremities Patented June 24., 191 3.

of which 'are drawn through passages in shoes-K, by means'of nuts applied. thereto. After the parts are thus connected, concrete or other suitable plastic material G is poured into the upper end of the upper section A, onto the partition F in the lower section, untilits level has reached the upper ends of the rods D which extend within the upper section, this plastic mass is agitated until it fillsvevery part of the interior of the two sections and the Space between the same,

and is then permitted to dry and harden after which the j acket' I is removed; In case the height ofthe-pole or column renders the introduction'of theplastic filling G into the upper end thereof, impracticable, the upper. section may be provided with one or moreports L as shown in Fig. 4, through which the material;is introduced into the interior of the structure. Beforethe jacket I is put in place and the plastic filling is poured into the connected sections, the lined openings H' for the pole'steps Within the portions of the structure to be occupied by the filling G, are pluggedvwith a mixture ofsand and .cement, which after the filling has solidified, may be readily removed by chipping. A-pole, pile or column of con 'siderable length may thus be readilybuilt up of separate sections which greatly facilitate its erection and transportation and the structure when completed will be as strong, if not stronger than if it had beenoriginally madein one piece.

While the sections of which the. pole or column is composedflhave been shown in the drawings as being cylindrical in form, they are in practice, made preferably of conoidal form to collectively produce a tapering structure.

Having thus described my invention what I claim is:

. 1. A pole, pile or column of plastic mate rial comprising axially alined, hollow sections, spaced from each other, rods embedded in the wall of one section and projecting beyond an end thereof,jthe protruding portions of said rods being divided into two groups, those comprised mone' engaging'the end surface of the adjacent section whereby to maintain them at a-determinate distancefrom each other, and those in the other group extending Within said adjacent the said-adjacent section, and a filler'of plastic material occupyingsaid. space and. 7Q

adjoining end port-ions of'said sections;

Inttestimony whereof I have afiixed my signature in presence of two witnesses.

ROBERT M. JONES.

Witnesses:

BARTON M. J NES, HOMER L. BEHM. 

